4images Modifications / Modifikationen > Mods & Plugins (Releases & Support)
[Mod] Search Engine Friendly URLs aka Short URLs
Chris:
--- Quote ---There is some speculation as to whether or not a search engine will crawl pages that have a URL with a query string:
--- Code: ---categories.php?cat_id=12&page=2
--- End code ---
The webmaster documentation for some search engines suggests their crawlers will not crawl pages with these types of URLs as they may represent and INFINITE URL space. Frankly, Google has ALWAYS crawled all of my web pages with these URLs with no problems. My opinion is that it is the session id in a query string that may influence the crawler.
The following was recovered from search engine cache and restored by me. I did not write this mod
--- End quote ---
This mod will convert your 4images URLs into shorter URLs and remove the query string. This mod requires an Apache compatible web server.
Step 1
Open /includes/sessions.php
Find:
--- Code: --- function url($url, $amp = "&") {
global $l;
$dummy_array = explode("#", $url);
$url = $dummy_array[0];
if ($this->mode == "get" && !preg_match("/".SESSION_NAME."=/i", $url)) {
$url .= preg_match("/\?/", $url) ? "$amp" : "?";
$url .= SESSION_NAME."=".$this->session_id;
}
if (!empty($l)) {
$url .= preg_match("/\?/", $url) ? "$amp" : "?";
$url .= "l=".$l;
}
$url .= (isset($dummy_array[1])) ? "#".$dummy_array[1] : "";
return $url;
}
--- End code ---
Replace with:
--- Code: ---/* ORIGINAL CODE
function url($url, $amp = "&") {
global $l;
$dummy_array = explode("#", $url);
$url = $dummy_array[0];
if ($this->mode == "get" && !preg_match("/".SESSION_NAME."=/i", $url)) {
$url .= preg_match("/\?/", $url) ? "$amp" : "?";
$url .= SESSION_NAME."=".$this->session_id;
}
if (!empty($l)) {
$url .= preg_match("/\?/", $url) ? "$amp" : "?";
$url .= "l=".$l;
}
$url .= (isset($dummy_array[1])) ? "#".$dummy_array[1] : "";
return $url;
}
*/
function url($url, $amp = "&") {
global $l, $user_info;
$dummy_array = explode("#", $url);
$url = $dummy_array[0];
$url = str_replace('&', '&', $url);
if (!defined('IN_CP')) {
if (strstr($url, 'index.php')) {
$url = str_replace('index.php', './', $url);
}
elseif (strstr($url, 'search.php')) {
if (strstr($url, 'page=')) {
preg_match('#page=([0-9]+)&?#', $url, $matches);
if (isset($matches[1])) {
$split = explode('?', $url);
$url = $split[0];
$query = @$split[1];
$url = str_replace('search.php', 'search.'.$matches[1].'.htm', $url);
$query = str_replace('page='.$matches[1].'&', '', $query);
$query = str_replace('&page='.$matches[1], '', $query);
$query = str_replace('page='.$matches[1], '', $query);
if (!empty($query)) {
$url .= '?' . $query;
}
}
}
else {
$url = str_replace('search.php', 'search.htm', $url);
}
}
elseif (strstr($url, 'lightbox.php')) {
if (strstr($url, 'page=')) {
preg_match('#page=([0-9]+)&?#', $url, $matches);
if (isset($matches[1])) {
$split = explode('?', $url);
$url = $split[0];
$query = @$split[1];
$url = str_replace('lightbox.php', 'lightbox.'.$matches[1].'.htm', $url);
$query = str_replace('page='.$matches[1].'&', '', $query);
$query = str_replace('&page='.$matches[1], '', $query);
$query = str_replace('page='.$matches[1], '', $query);
if (!empty($query)) {
$url .= '?' . $query;
}
}
}
else {
$url = str_replace('lightbox.php', 'lightbox.htm', $url);
}
}
elseif (strstr($url, 'categories.php')) {
if (strstr($url, 'cat_id=') && strstr($url, 'page=')) {
preg_match('#cat_id=([0-9]+)&?#', $url, $matches1);
preg_match('#page=([0-9]+)&?#', $url, $matches2);
if (isset($matches1[1]) && isset($matches2[1])) {
$split = explode('?', $url);
$url = $split[0];
$query = @$split[1];
$url = str_replace('categories.php', 'cat'.$matches1[1].'.'.$matches2[1].'.htm', $url);
$query = str_replace('cat_id='.$matches1[1].'&', '', $query);
$query = str_replace('&cat_id='.$matches1[1], '', $query);
$query = str_replace('cat_id='.$matches1[1], '', $query);
$query = str_replace('page='.$matches2[1].'&', '', $query);
$query = str_replace('&page='.$matches2[1], '', $query);
$query = str_replace('page='.$matches2[1], '', $query);
if (!empty($query)) {
$url .= '?' . $query;
}
}
}
elseif (strstr($url, 'cat_id=')) {
preg_match('#cat_id=([0-9]+)&?#', $url, $matches);
if (isset($matches[1])) {
$split = explode('?', $url);
$url = $split[0];
$query = @$split[1];
$url = str_replace('categories.php', 'cat'.$matches[1].'.htm', $url);
$query = str_replace('cat_id='.$matches[1].'&', '', $query);
$query = str_replace('&cat_id='.$matches[1], '', $query);
$query = str_replace('cat_id='.$matches[1], '', $query);
if (!empty($query)) {
$url .= '?' . $query;
}
}
}
else {
$url = str_replace('categories.php', 'cat.htm', $url);
}
}
elseif (strstr($url, 'details.php?image_id=')) {
if (strstr($url, 'image_id=') && strstr($url, 'mode=')) {
preg_match('#image_id=([0-9]+)&?#', $url, $matches1);
preg_match('#mode=([a-zA-Z0-9]+)&?#', $url, $matches2);
if (isset($matches1[1]) && isset($matches2[1])) {
$split = explode('?', $url);
$url = $split[0];
$query = @$split[1];
$url = str_replace('details.php', 'img'.$matches1[1].'.'.$matches2[1].'.htm', $url);
$query = str_replace('image_id='.$matches1[1].'&', '', $query);
$query = str_replace('&image_id='.$matches1[1], '', $query);
$query = str_replace('image_id='.$matches1[1], '', $query);
$query = str_replace('mode='.$matches2[1].'&', '', $query);
$query = str_replace('&mode='.$matches2[1], '', $query);
$query = str_replace('mode='.$matches2[1], '', $query);
if (!empty($query)) {
$url .= '?' . $query;
}
}
}
else {
preg_match('#image_id=([0-9]+)&?#', $url, $matches);
if (isset($matches[1])) {
$split = explode('?', $url);
$url = $split[0];
$query = @$split[1];
$url = str_replace('details.php', 'img'.$matches[1].'.htm', $url);
$query = str_replace('image_id='.$matches[1].'&', '', $query);
$query = str_replace('&image_id='.$matches[1], '', $query);
$query = str_replace('image_id='.$matches[1], '', $query);
if (!empty($query)) {
$url .= '?' . $query;
}
}
}
}
elseif (strstr($url, 'postcards.php?image_id=')) {
preg_match('#image_id=([0-9]+)&?#', $url, $matches);
if (isset($matches[1])) {
$split = explode('?', $url);
$url = $split[0];
$query = @$split[1];
$url = str_replace('postcards.php', 'postcard.img'.$matches[1].'.htm', $url);
$query = str_replace('image_id='.$matches[1].'&', '', $query);
$query = str_replace('&image_id='.$matches[1], '', $query);
$query = str_replace('image_id='.$matches[1], '', $query);
if (!empty($query)) {
$url .= '?' . $query;
}
}
}
}
if ($this->mode == "get" && strstr($url, $this->session_id)) {
$url .= strpos($url, '?') !== false ? '&' : '?';
$url .= SESSION_NAME."=".$this->session_id;
}
if (!empty($l)) {
$url .= strpos($url, '?') ? '&' : '?';
$url .= "l=".$l;
}
$url = str_replace('&', $amp, $url);
$url .= isset($dummy_array[1]) ? "#".$dummy_array[1] : "";
return $url;
}
--- End code ---
Step 2
Create a new file named .htaccess (note the leading period that starts the file name) or edit your existing .htaccess file in the root level of your 4images installation. Place the following lines inside that file:
--- Code: ---# Begin search engine friendly links code
RewriteEngine On
#RewriteBase /
RewriteRule ^lightbox\.htm$ lightbox.php?%{QUERY_STRING}
RewriteRule ^lightbox\.([0-9]+)\.htm$ lightbox.php?page=$1&%{QUERY_STRING}
RewriteRule ^search\.htm$ search.php?%{QUERY_STRING}
RewriteRule ^search\.([0-9]+)\.htm$ search.php?page=$1&%{QUERY_STRING}
RewriteRule ^cat\.htm$ categories.php?%{QUERY_STRING}
RewriteRule ^cat([0-9]+)\.([0-9]+)\.htm$ categories.php?cat_id=$1&page=$2&%{QUERY_STRING}
RewriteRule ^cat([0-9]+)\.htm$ categories.php?cat_id=$1&%{QUERY_STRING}
RewriteRule ^img([0-9]+)\.htm$ details.php?image_id=$1&%{QUERY_STRING}
RewriteRule ^img([0-9]+)\.([a-zA-Z0-9]+)\.htm$ details.php?image_id=$1&mode=$2&%{QUERY_STRING}
RewriteRule ^postcard([a-zA-Z0-9]+)\.htm$ postcards.php?postcard_id=$1&%{QUERY_STRING}
RewriteRule ^postcard\.img([0-9]+)\.htm$ postcards.php?image_id=$1&%{QUERY_STRING}
# End search engine friendly links code
--- End code ---
If for some reason it doesnt work for u, make sure that mod_rewrite is installed on your server and that the vdomain/dir of yours has permissions to use it (contact your hoster if u are not sure).
If it still doesnt work, try to uncomment:
--- Code: ---#RewriteBase /
--- End code ---
and replace / with the path to 4image root dir in your address bar.
(for example if your gallery address is: www.example.com/pix/
then u should add:
--- Code: ---RewriteBase /pix/
--- End code ---
Revision History:
* Restored sessions.php mod code from search engine cached page
Spadver:
Thank you!
But is it all?
As far as I remember, there must be some additional code in 4images.
May be for getting
--- Quote ---QUERY_STRING
--- End quote ---
?
Chris:
--- Quote from: Chris on March 14, 2005, 04:17:30 PM ---That's it.
--- End quote ---
marod0er:
No, there's more.
I remember changing something sessions.php
Chris:
Yeah, I came across it while digging through search engine cached pages. I've updated the original post
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